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// Copyright 2006-2008 the V8 project authors. All rights reserved.
//
// Tests of the TokenLock class from lock.h
#include <stdlib.h>
#include "v8.h"
#include "platform.h"
#include "cctest.h"
using namespace ::v8::internal;
// Simple test of locking logic
TEST(Simple) {
Mutex* mutex = OS::CreateMutex();
CHECK_EQ(0, mutex->Lock()); // acquire the lock with the right token
CHECK_EQ(0, mutex->Unlock()); // can unlock with the right token
delete mutex;
}
TEST(MultiLock) {
Mutex* mutex = OS::CreateMutex();
CHECK_EQ(0, mutex->Lock());
CHECK_EQ(0, mutex->Unlock());
delete mutex;
}
TEST(ShallowLock) {
Mutex* mutex = OS::CreateMutex();
CHECK_EQ(0, mutex->Lock());
CHECK_EQ(0, mutex->Unlock());
CHECK_EQ(0, mutex->Lock());
CHECK_EQ(0, mutex->Unlock());
delete mutex;
}
TEST(SemaphoreTimeout) {
bool ok;
Semaphore* sem = OS::CreateSemaphore(0);
// Semaphore not signalled - timeout.
ok = sem->Wait(0);
CHECK(!ok);
ok = sem->Wait(100);
CHECK(!ok);
ok = sem->Wait(1000);
CHECK(!ok);
// Semaphore signalled - no timeout.
sem->Signal();
ok = sem->Wait(0);
sem->Signal();
ok = sem->Wait(100);
sem->Signal();
ok = sem->Wait(1000);
CHECK(ok);
delete sem;
}
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